4. Remove the bottom cover (see Bottom cover on page 36).
5. Remove the battery (see Battery on page 37).
6. Remove the hard drive (see Hard drive on page 46).
7. Remove the keyboard (see Keyboard on page 49).
8. Remove the fans (see Fans on page 60).
9. Remove the smart card reader (see Smart card reader on page 45).
NOTE: When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
Solid-state drive (see Solid-state drive (M.2) on page 40)
●
WLAN module (see WLAN module on page 41)
●
WWAN module (see WWAN module on page 43)
●
Memory modules (see Memory module on page 38)
●
Graphics board (see Graphics board on page 56)
Remove the system board:
1. Remove the two Phillips PM2.0×3.0 screws from the bracket atop the display connector (1), and then
remove the bracket (2).
2. Disconnect the display cable (3).
3. Disconnect the remaining cables from the system board:
(4) Fingerprint reader cable
(5) TouchPad cable
(6) RTC battery cable
(7) Speaker cable
(8) LED board cable
Component replacement procedures 63
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